APA Format
Michael Quin Patton;
. (1980). Qualitative evaluation methods
/
. London : Sage Publications
MLA Format
Michael Quin Patton;
. Qualitative evaluation methods
/
. London : Sage Publications, 1980
Chicago Format
Michael Quin Patton;
. Qualitative evaluation methods
/
. London : Sage Publications, 1980
Australian/Harvard Format
Michael Quin Patton;
. 1980. Qualitative evaluation methods
/
. Sage Publications London